Overview Of Respiratory Tract Flashcards
(28 cards)
1
Q
Nose features
A
- External portion supported by bone and cartilage
- Interior divided by midline nasal septum
- Lined by respiratory epithelium
- Roof contains olfactory epithelium
- Nasal cavity surrounded by paranasal sinuses
2
Q
Nose features
A
- External portion supported by bone and cartilage
- Interior divided by midline nasal septum
- Lined by respiratory epithelium
- Roof contains olfactory epithelium
- Nasal cavity surrounded by paranasal sinuses
3
Q
Nose functions
A
- Filtration of dust
- Humidification of inspired air
- Contains receptors for sense of smell
- Paranasal sinuses lighten skull and functiom same as nasal cavity
4
Q
Pharynx subdivisions
A
- Nasopharynx
- Oropharynx
- Laryngopharynx (houses ring of tonsils)
5
Q
Tonsils types
A
- Pharyngeal
- Tubal
- Palatine
- Lingual
6
Q
Pharynx functions
A
- Passage for air and food
2. Tonsils respond to inhale antigens
7
Q
Larynx features
A
- Framework of cartilages and dense connective tissue membranes
- Connects pharynx to trachea
- Located in anterior neck at level of CV3-CV6
8
Q
Larynx functions
A
- Guard the air passages
- Prevents food from entering respiratory tract
- Voice production
9
Q
Trachea features
A
- Fibrocartilageneous tube extending from inferior end of larynx (CV6 level)
- Wall contains C shaped cartilages
- Gap in cartilage filled by trachealis muscle
- Divided into 2 main bronchi at level of sternal angle (lower border of TV4(
10
Q
Trachea functions
A
- Air passageway
* Filters, warms, moistens incoming air
11
Q
Bronchial tree
A
- Primary bronchi
- Secondary bronchi (lobar bronchi)
- Tertiary bronchi (segmental bronchi)
- Bronchi
- Bronchioles
12
Q
Primary bronchi
A
Right and left
13
Q
Secondary bronchi
A
- 3 right
* 2 left
14
Q
Tertiary bronchi
A
- 10 right
* 8-9 left
15
Q
Bronchi
A
23 generations of divisions
16
Q
Bronchioles
A
- less than 1mm in diameter
- cartilage on walls replaced by smooth muscle
- Consist of terminal and respiratory bronchioles
17
Q
Respiratory zone
A
- Respiratory bronchiole
- Alveolar duct
- Alveolar sac
- Alveoli
18
Q
Stroma definition
A
Fibrous elastic connective tissue of lungs, allowing lungs to recoik passively during expiration
19
Q
Right lung fissures
A
- Horizontal fissure
* Oblique fissure
20
Q
Left lung fissures
A
- Oblique fissure
* Cardiac notch
21
Q
Right lung lobes
A
- Upper lobe
- Middle lobe
- Lower lobe
22
Q
Left lung lobes
A
- Upper lobe
* Lower lobe
23
Q
Pleura definition
A
Serous membrane, double layered
24
Q
Pleura components
A
- Parietal layer
- Visceral layer
- Pleural cavity
25
Parietal layer
Lines thoracic cavity
26
Visceral layer
Covers external lung surfaces
27
Pleural cavity
Space in between 2 layers and contains pleural fluid
28
Pleura functions
* Produce lubricating fluid
| * Compartmentalise lungs and thoracic cavity
